| Year | Value | | 2021 | 465,950 | | 2020 | 465,950 | | 2019 | 465,950 | | 2018 | 465,950 | | 2017 | 465,950 | | 2016 | 463,950 | | 2015 | 456,950 | | 2014 | 456,820 | | 2013 | 456,820 | | 2012 | 447,820 | | 2011 | 444,820 | | 2010 | 439,820 | | 2009 | 437,820 | | 2008 | 437,820 | | 2007 | 437,820 | | 2006 | 429,890 | | 2005 | 429,650 | | 2004 | 384,720 | | 2003 | 384,120 | | 2002 | 380,000 | | 2001 | 380,000 | | 2000 | 370,000 | | 1999 | 370,000 | | 1998 | 360,000 | | 1997 | 360,000 | | 1996 | 360,000 | | 1995 | 360,000 | | 1994 | 350,000 | | 1993 | 350,000 | | 1992 | 350,000 | | 1991 | 341,050 | | 1990 | 330,470 | | 1989 | 314,050 | | 1988 | 313,000 | | 1987 | 310,120 | | 1986 | 312,800 | | 1985 | 307,800 | | 1984 | 307,800 | | 1983 | 310,100 | | 1982 | 303,600 | | 1981 | 302,800 | | 1980 | 307,200 | | 1979 | 299,580 | | 1978 | 297,800 | | 1977 | 297,800 | | 1976 | 297,800 | | 1975 | 297,800 | | 1974 | 297,800 | | 1973 | 308,140 | | 1972 | 311,770 | | 1971 | 312,300 | | 1970 | 312,000 | | 1969 | 321,760 | | 1968 | 321,770 | | 1967 | 315,000 | | 1966 | 315,000 | | 1965 | 315,000 | | 1964 | 315,000 | | 1963 | 315,000 | | 1962 | 315,000 | | 1961 | 315,000 |
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